This also reaffirms George's notion that children have their blood tested at birth to see their force potential.

Fuck it I agree, but throw it all out the window and start again. Have kids train to become Jedi when it is realised they're strong with the force because they start displaying their abilities in the midst of their childhood. Like Anakin but it should have been the norm.
Luke should have been too old because he was an adult. And Anakin if you would of preferred to see him Luke's age as many do.
Let all the Jedi have personalities. It makes for a more interesting movie, instead of dudes is a rubber mask sitting in a chair. Obi Wan and Yoda had one each in the OT so why do the Jedi have to be staunch in the PT. Let them be individuals with different opinions and philosophies not monks with a strict code and guide lines.
I watched Seven Samurai last night. Each Samurai is different, an individual with a personality but still with a deep dedication to their craft.
That's enough rambling for now.